Restless Earth

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Formation of Volcanoes-

1.Magma rises up through cracks or weaknesses in the earths crust

2.Pressure builds up inside the earth

3.When this pressure is released, e.g as a result of plate movement, magma explodes to the surface causing a volcanic eruption.

4.The lava from the eruption cools to form new crust

5.Over time, after several eruptions, the rock builds up and a volcano forms. 

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Short term responses-

-Evacuation to the north of the island

-Abandonment of the capital city , Plymouth

-The british government gave money for compensation and redevelopment

Long term responses-

-Exclusion zone was set up in the volcanic region

-A volcanic observatory was built to monitor the volcano

-New roads and airports were built


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Montserrat 2

Primary Effects-

-2/3 of the island was covered by ash

-50% of the population were evacuated to the north of the island

-19 people died 

-The farmland was destroyed 

-Many schools and hospitals were destroyed

Secondary Effects-

-Fires started as buildings and gas pipes were set alight

-Towns and villages were uninhabitable 

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Volcanoes at constructive plate boundaries

When the two plates move apart the magma is forced upwards into the gap and eventually a new crust is formed to form a volcano.

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Earthquakes in LEDCS

  • LEDCS may not have the resources or technology to predict, protect and respond to an earthquake.
  • Communication systems may be undeveloped, so the population may not be well educated about to do in the event of an earthquake.
  • Construction standards tend to be poor in LEDCS. Homes and other building may not be build to withstand earthquakes so are more likely to be damaged.
  • Evacuation plans may be hard to put into place due to the limited resources and funds
  • There may not be enough money in the country to re-build or protect homes and buildings after the earthquakes, leaving many people homeless or living in tempoary emergency housing. 
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